Only install onto 0.75 inch regular barrel and standard gas tube

Diameter: 19mm (0.75 inch)

Length: 25.4mm (1.0 inch)

Overall height: 37.5mm (1.5 inch)

Weight (net): 23g (0.8 ounce)

Use supplied hex hey to fasten and release onto the barrel

High quality aluminum alloy in durable black matte finish

Shock proof designed for real fire caliber

With proper hex key and pin

Made in China under our strict quality control